help in plot of sin

I do not get a sinus wave
>> f=10;
t=[0:1/(f*5):1/(f*0.5)];
teta=round(100*rand);
y1=sin(2*pi*f*t);
y2=sin(2*pi*f*t+deg2rad(teta));
figure(teta);
plot(t,y1,t,y2)
xlabel('x')
ylabel('y')
grid

回答(1 个)

Try
t=0:1/(f*50):1/(f*0.5);
instead of
t=0:1/(f*5):1/(f*0.5);

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